Floodlight



Jan. 7, 1930. H. A. KLIEGL. ETA.

FLOODLIGHT Original Filed Ilay 24, 1928 Q LL uomtoz Jan? 7, 1930. H. A.KLIEGL ET AL 1,742,501

FLooDLIGH'r Original Filed llay 24. 1928 2 Sheets-Sheet 2 Patented Jan.7, 1930 UNITED STATES PATENT OFFICE HERBERT A. KLIEGL AND JOSEPH KLIEGL,OF NEW YORK, N. Y., ASSIGNORS TO KLIEG-L BROS. UNIVERSAL ELECTRIC STAGELIGHTING CO., INC., OF NEW YORK,

N. Y., A CORPORATION OFNEW YORK a ELoonLIeH'r Original application ledMay 24, 1928, Sera1 N'o. 280,146. Divided and this application filedSeptember 18, 1928. Serial No. 306,747.`

This invention pertains to fiood lights of the` type used largely intheatres, and is a di# vision of our application Serial No. 280,146filed May 24, 1928.

The object of that invention is to so improve the design and arrangementof the apparatus as to greatly enhance the convenience and efficiencythereof. n

`The particular object of this divisional application is to disclose andclaim the improved color screen devices of the parent invention.

Further and other objects and advantages will be hereinafter set forthin the accompanying specification and claim, and shown in the drawings,which by way of illustration show what is now considered to be thepreferred embodiment of the invention.

Fig. lis a side view of the apparatus, partly broken away to showdevices in the interior thereof. A

Fig. 2 is a rear view of the apparatus (from the left of Fig. l). i

Fig. 3 is a cross section on line 3 3 of Fig. l.

|The supporting and enclosing structure of the invention comprises, ingeneral, a lamp housing 20, to the front of which is attached 3d thelens housing 22. On the front of the lens housing is mounted the screenhousing 24. The whole machine is mounted on a standard 26 having a crossmember 28 pivotally mounted upon the upper end thereof. Pedestals 30Vstand on the ends of member 28. Projecting center of gravity of thestructure in orderv that it may be readily movable by the operator andbe easily retained in set position by the clamping screws;

In the lower portion of lens housing 22 are two parallel horizontallongitudinal rods36 upon which lens 38 is slidably mounted for thepurpose of focusing and for the additional, purpose of bringing the lensto an achr head 4() is provided, upon which thelens structure ismounted. In order to move the lens back and forth on rods 36, we connectcross-head 40 by means ofa downwardly projecting lug 42 .to the upperstrand of a chain 44 which passes over front and rear sprockets 46 andV48 respectively. Sprocket 46 rotates on a short shaft 50 whereassprocket 48 is fast to a shaft 52 extending from side to side of themachine and supported for rotation in brackets 54. Each end of shaft 52is provided with a crank handle 56 which has a pointer 58'passing over anumbered dial 60;v When handle 56 is turned by theoperator the lens ismoved along rods 36, its exact position being always known to theoperator by means Yof the pointer and dial. Attached to the lower strandof chain 44A land slidable on rods 62 is a counterweight 64 whichlalways moves in a direction opposite to that of the lens, therebypreserving the center of gravity of the machine-in substantially fixedposition regardless of the position of the lever.

Referring now to the screen mechanism at the front end of the machine,it will be noted that the interior of screen housing 24 isprovided withguideways 66 to accommodate five color screens 68. The .rearmost screenis shown elevated to operative position aligned witlilens 38, while theother four screens are shown in normal inoperative position at thebottom of housing 24. Each screen is simply a rectangular metalframework comprising bottom member 70 and side members v hinged cover 78 is raised and the screens are dropped between guides 72 to theirinoperative position'at the bottom of housing 24.

Extending horizontally under each screenC7100 and substantially parallelto frame member 70 thereof, is a crank Aarm 80 having at its free end agrooved roller 82 contacting With member Onearone end thereof. The otherend of each arm 8O is clamped to the front end of one of a set ofconcentric shafts 84, 86, 88, 90 and 92. These shafts eXtendto the-reair ofthe machine and are there supported 'by 4a braclet 94. -Eachshaft 'is provided at its rear end with an operating handle 96 by whichthe shaft may be rotated to move an arm 8O from its normal horizontal`position to a v.vertical position as shown at the right Vin Fig. 3, andvice versa. lVhen an arm 80 swings from horizontal to vertical it raises.its corresponding screen to operative position fin front of opening 98in the rear of housing 24, `and when the arm 8O moves back to.horizontal the screen :follows .it by .gravity to inoperative`posi'tienatthe bottom of housing 24. @here is no yoperative connectionbetween-anyscreen and its operating arm except roll'er y82 which travelsfrom end to v end of frame member 70. Vhenarm 80 yis in itsraisedposition it is slightly Apast the vertical center line of shaftsSb-92, and therefore is automatically held in V.position by theWeight-of Ithe screen and also .'by the weight of the coordinated handle96 which .isthen preferably horizontal. It will be understood that theposition'ofany handle 96 will indicate to the operator the position offthe screeny corresponding to that handle.`

The arc light and Yits .appurtenancesfare not a partof :the presentinvention, therefore they are .not described.

:It-is to be understood ythat the inventionjs not limited totheconstructionherein speciically illustrated but can loe-embodied inother fzforinswithout departure from Aits spirit as defined by theappended claim.

YAInapparatus of the class-described, in combination, .a 4plurality of4screens at the front off :the machine, a set of vertical guicleyvaysfor each screen, a plurality of concentric -sliarfts extending fromfront to rear of the.

' apparat-us, a crank arm fast on the front end V"screen frosting bygravity on the end of they of cachot said shafts underneath oneof saidscreensVa'nd a handle on the rear end of Veach sha-ft whereby theoperator at the rear of the.

machine may rotate any selected shaft to move a crank varm fromhorizontal to vertical position to-cause the corresponding screen totravel vertically in its guideways, said i :cra-nk rarm.

.In testimony whereof We hereto affix our signatures.-

` Y JOSEPH KLIEGL.

HERBERT A. KLIEGL.V

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